Apparatus for heating and tempering grain.



` V). W. CARTER.

APPARATUS ma HEATING Aran armmws GRAIN.

APPLICATION FILED JULY 16. 1914.

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APPARATUS FOR HEATING AND TEMPERKNG GRAIN. APPLlCATloN HLED1uLY16,19|4.

, leg; Patented May 2, 1916.

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OE MINNEAPOLIS, BIINNESOTA.

APPARATUS FOR EEATING TEMPER-ING GRAIN.

.To all tti/lam 'it may' concern Be it known that l, CLARENCE il?. CARTER, a citizen oit the United States. residingJ at lllinneapolis, in the county ot Hennepin and State of iLlinnesota, have invented certain neiv and useful Improvements in Apparatus for Heating and 'leinperingn Grain, of which the following' is a s eciiicat-ion.

My invention relates to an apparatus for heating and tempering grain, and has tor its object to provide a mechanism for this purpose which shall he relatively compact, easily accessible and which will act upon the grain so as to heat rapidly and `uniformly all parts ot' the grain passing through the machine. To this end l provide a station ary, horizontal battery of heated pipes suiiioiently spaced one from another and securely held in such spaced position by means which will not obstruct the passage ot `grain through the machine. The grain is caused to pass over and over the pipes of this hattery by means oit a drum having' a series of bullies thereon which rotate about the battery i ot pipes continually, bringing the grain to the top oit .aid .battery and droppingl it upon the same, r i ch grain rattles through ing successive. pipes until it passes to the bottoni, ivhere it is again carried up and the operation repeated until the grain reaches the discharge opening4 at the forward er ,l of the drum. The movement ot the giran-i from the receiving end to the discharge end may oe effected hy a sli ght inclination oi" the drum; but in practice it has heen tound that such movement ivill take place without any inclination ot the drunn the iinpingement of the kernels ot grain at the receiving;- end upon those in advance having the effect of causing` the advance grain to move slowly :tor'waril through the machine and finally to reach the discharge end thereof. liiy invention provides improved means for supporting; and rota tine' this drum'in relation to the ineens for feeding the grain into the same whereby all i ts or obstructions which n' eht. cause clogging or Wear of the drum e ded. ihc :full objects and advantages ot my ion will aiiipear in connection With the led description thereof and are parf arly pointed out in the clain'is.

`- nos, illusti-atingn the applica- `ion in one fornn-lligure l" Judinal se':tional rievv ci heat- Iincl tempering; machine en'ihodying Specication of Letters Patent.

Application tiled July 16. 19111.

Patented May 2, 1916. serial No. 851,303.

invention. Fig, 2 is a sectional elevation on line Q--2 viewed in the direction of the arroiv. Fig. 3 is a sectional elevation on line vieived in the direction of the arrow. Fig. 4 is a detail view showing the manner of capping' the steam-pipes so as not to increase the diameter at the cap end.

As illustrated, 1 provide a frame consisting of end supports 10 and 11 rigidly Secured in spaced relation hy truss rods 18, 14 and 15. End support 11 is provided with an inner plate 1G and a casing 17 adjacent thereto through which runs a partition 18 dividing the interior ot said casing into two chambers 1f) ot apertures are formed through end 16 into chamber 20, Within which the ends of a plurality ot steam-pipes 21 which are thus placed in communication ivith chamher Q0. Similarly, the partition 1S is pro. iderl with a plurality of apertures extending through the same into chamber 19, in Ywhich are seated the ends of a series of pipes ot' smaller diameter than pipes 2l, which 'pipes extend to a point adjacent the csp ends of pipes 21,' as indicated at 23 in Fig. 1l. The pipes 22 are thus placed in communication With the chamber 19. is admitted to chainliier 19 through a steampipe Qi, which steam lloivs through pipes 2") to 'the points 23 at theI ends ot' pipes 21, whence the steam returns through pipes 21 to cl'iainher 20 and may he discharged through a pipe The course of the steam is indicated by arrows in Fig. 1 ot' the drawings. By this .means the pipes 21 are supplied W'th. steam so as to heat the exposed walls oi the 'same to the desired degree.

rlie portions of the pipes 21 extendiiie,- from the point of inner support on plate 16 held properly spaced from one another hy means of a series of plates 26. rlhese plates are of relatively thin motel provided with apertures only suiiiciently large to permit the pipes 21 to pass through said aper tures: and when the plates are positioned, as indicated in Figs. 1 and 3, upon the pipes E21, said pipes are held in the desired relative position and at the same time the plates 26 do not interfere With the operation of the cylini'ler or with the movement of the grain through the machine. In some instances it is conteinliilated that the plates 2G be turned ohliolnely opposite to thedirection of travel ot the grain through the machine, as indicated in dotted lines at Q7. thusvacting to plate and 20, respectively. series f are seated Steam h the rear end of the. entire battery of 'will thus he seen that the battery of pipes. hy.' reason et the spacing plates 26 and 5V and the support from pipe ends 33, is properly heid in a suspended or floating inanncr 'netween supporte l0 and 1l with .ion ensei-ating to interfere with the VAin through `the machine or the ii' the surrounding cylinder,

. eh will now he described. This cylinder :25 comprises an inner skin 234, an outer skin 35,

wooden envelop 3G adjacent the outer und a i'iiler 3i of insulating niiiterial. nner and outer skins are preieralily ed of shi'et inetal. Boltcd to the cylinder hy holl's haring.; eonn'tersunk heads, aS iinlirzateil at 23S in Fig. l. adjacent the front and rear ends iii said cylinder, are rings 30 and 310, respee ely. which rings rest upon rolle fil and 42, 35 and l5.. iolted to the end of ring 40 so as to elose the rear end oil the cylinder is a circular disl; if) hi. 'ing a central circular aperture rinse-lv surrounding the inturncd header 32. as el arljv indicated in l'figs. l. and Upon the. ring 4.0 is formed a spur gear t which with a pinion #i5 driven nin air;vv esired source of power. It thus that the i'aylinder rests and turns rollers lil. and 'forming with its -osed joiiitvrith the eoinpa 'atively 532, which ]oint is so i ler nien'iher iat ;i'rain or dust cannot enter so .fi'iailv ali'ect the character ot the inf/.1. u i, i f, T1, dei a, one piiiou o risc. ie i eno ol tluI e'vlindei is. as indicated prf ined within the open mouth Ot a leal easing i? rigidly scoured to plate t support il7 said cah'iiiffy i7 heine; proa iliseharee spoilt Li8 at the hot 'vided with i4 fi l'acd spout 4f) extends in a inelined direction through the. .inw f-inher fi". f'ioine of the hottoin pn, i. as indiezited at 50, are, sonien'liat ;-horti iied in "ront oi' the difeharee opening;r

Si? i providing a. grain-receiving portion .89 of the The depeinlizii- :i haliie across this aj portion il anaiiirt which the 'ein' raus-intr it to repreventiiig forward flow iournaled on truss rods 1i through the Cylinder under the inonieniuni 0i its leed into the saine. .fr pli nty et haclnrardly-turiieil iiie'hts z. seeureffl te the fr., i

'inner wall 3i of the cylinder .rfi

ries ot pockets 53, which. as the revolved. carry the lgrain to 'the iippei thereotI and have the ei'i'eet' ot dis-Chain. the grain so carried across the ente. upper portion ol. the hatterj: ot pipes zii. "the spacer plate 2S is ohliipiely turned in a i rev the feed end of the erlinder. i provide a special rappingv device. tor the pipes El. which iS indicated in detail in lfiff. -l-. I'iiiese pipes have lthe end portion 54 forged down to a sufi'ieientlv smaller diameter So that when threaded the portion fifi will receive a threaded 'ap 55, whose outside diameter the saine as that oi pipe 2l. The nime-es ae tween the caps are. tlnreore. in all respects the saine as the sp: ees hetween the pipes Q1.

The, advantages ot in)Y invention will readil)7 he apparent, and its; inode oi opiiiration has heen el arly indicated Vin connection with the detailed description ot the parte. Fiteani having heen admitted through pipe i and passing` iii the, desrrihed manner through pipes 21 until said pipes are suiiieiently heated. the cylinder will he rotated at the desired speed and grain will ne i'ed iu'tn the saine through spout if). The inroniinfg Stream ol grain wili strike against lie halle portion 2f) ot plate 2S and he reet' I lroni tho portion 5l into the rear portions oi izon'r partinents 523 hetn'een iiigi'hts i f the grain hounds hach'uard 'troni haiiie is restrained hv the plate iii. "lnsiiij; the eiul oi the cylinder. 'this' plate is suhstziniaily flush with the inner sniliare oi' ie proieet ing elosure iiieinher fi. so that the rain is carried upward hv the llitrhils' il will pass the joint hetn'een plate Alll and ineinher Iii? without any tendeiiev to enter said joint ni to retard the operation oi' the deviate. the grain is discharged i'i-oin ihe llieii the top of the halierv of' heated iimajor: pari. oli that n'hii-h is rai'iied u rear end of the, flights nili he, l'oi".\';ii'ded h i' the, olilidiiely-extendeil plaie so hat there will he no tendency to elogi' the --reir ingr end ol the cylinder. :shove simeri. the cylinder will either he ver),Y siijn'htlj.' iiii'iineii l'roin the. rear to he l'rni't if he perl'eiflv level. and the iorwa inn the 30 pipes su;

humus fu' rmx? the salme p futvdi-v mi" pilw., so in through :un :mm1 'niy ui pluim-1 @e frame :md mvx throng/'P proper x pms:

ing' md which a,

one pendent mi in proper the same upidly at the 'top of the battery of' pipes so es to cause the grain to fall through and around such pipes, means ind)pendeint of the end walls and Carried by the pipes for holding the Several pipes in proper reizitive position7 and means te ruige er iewer lone of said end wills.

In testimony Whereolc ntii: my ture in presence of two witnesses, CLARENCE YV. CnTTi.

itnesses F. A. VIHTELEY, H; A. BOWMAN. 

